[RE-wrenches] Enphase failures

[Jason Szumlanski]

The M190 had a first year failure rate far higher than the M215, of which
we have only swapped a couple. I can echo your frustration with the M190,
especially the 208V model. Based on the M215 performance so far, we are
happy to continue selling Enphase.

We have some sites that have had multiple string inverter replacements over
just a few years. I can't say that is any more palatable.

If you don't find the labor reimbursement rate adequate for your business,
maybe you should consider a trip charge or compensatory fee. $150 isn't
worth it sometimes when you have to drive hours or under adverse
circumstances.

Jason Szumlanski
Fafco Solar



On Thu, Jul 5, 2012 at 4:02 PM, Troy Harvey <taharvey at heliocentric.org>wrote:

> I'm wondering how many of you have had Enphase failures in the field.
> Basically every one of our sites with M175 or M190 has seen failures. Most
> of those are one their second wave of replacements. It appears these have a
> linear failure rate in the field, and we have to replace 2 to 3 inverters
> at every site, every year.
>
> At this point we have stopped using Enphase products because the cost of
> replacement is too high. You have to disassemble a whole array just to
> replace 1 or 2 inverters. In theory it gives you per-panel diagnostics, but
> that is just silly considering the panels are thousands of times more
> durable than the inverters.
>
> What is your experience?
>
> thanks,
>
> Troy Harvey
> ---------------------
> Principal Engineer
> Heliocentric
> 801-453-9434
> taharvey at heliocentric.org
>
>
>
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